Add project files.

JSMR.Domain/Entities/Circle.cs

@@ -0,0 +1,11 @@
+namespace JSMR.Domain.Entities;
+
+public class Circle
+{
+    public int CircleId { get; set; }
+    public required string MakerId { get; set; }
+    public required string Name { get; set; }
+    public bool Blacklisted { get; set; }
+    public bool Favorite { get; set; }
+    public bool Spam { get; set; }
+}